rxe_crc32(9)

📦 version 7.3.1, in nixpkgs unstable

💅 rxe_crc32(9) — Kernel API Manual ✨

okay so bestie, this is a page from the Kernel API Manual and it's all about rxe_crc32. yes, we're doing checksums today, and honestly? kinda iconic of us. 🎀

🌸 NAME 🌸

rxe_crc32 — compute cumulative crc32 for a contiguous segment 💖

like, it crunches the crc32 of one chunk, but it's built to be chained across segments. cumulative, bestie. that's the whole vibe. 🦋

✨ SYNOPSIS ✨

__be32 rxe_crc32 (struct rxe_dev *rxe , __be32 crc , void *next , size_t
len );

no cap, that's the whole signature. four args, one __be32 coming back out at you. 💅

🫶 ARGUMENTS 🫶

  • rxe — the rdma_rxe device object. your main character, basically. 👑
  • crc — the starting crc32 value, carried over from the previous segments. it's giving "previously on…" energy. 🌈
  • next — the starting address of the current segment. where the data actually lives rn. 📍
  • len — the length of the current segment. how many bytes we're taking with us. 📏

💜 RETURN 💜

the cumulative crc32 checksum. that's it, that's the whole gift. 🎁✨

🔥 SEE ALSO 🔥

kernel file ./drivers/infiniband/sw/rxe/rxe_icrc.c, plus the whole icrc friend group (iykyk):

ngl, if you're calling this one you're probably already deep in rxe_icrc.c with the rest of the crew. go say hi to them. 🦋

and that's the page, bestie! this one shipped from ./drivers/infiniband/sw/rxe, dated October 2026 — so yeah, future vibes only. take care of your crc32s and slay the checksum game 💖🌸✨

📦 where this page comes from